Business Days Between Dates
Count weekdays between two dates while excluding optional holiday dates.
Open tool →Date & Time Utilities
Business-day, timezone, calendar and recurring-date utilities.
Add or Subtract Days
Add positive or negative calendar days to a date and time.
Open tool →Add or Subtract Months
Add positive or negative months with end-of-month adjustment.
Open tool →ISO Week Number
Report ISO week number, week-year and weekday.
Open tool →Day of Year Calculator
Report the ordinal day and remaining days in the year.
Open tool →Leap Year Checker
Determine whether a year contains 366 days.
Open tool →Date Format Validator
Validate a date against one of the supported explicit formats.
Open tool →Timezone Converter
Convert one date-time between valid IANA timezones.
Open tool →Unix Milliseconds Converter
Convert Unix milliseconds to a date or a date to milliseconds.
Open tool →ISO Week Date Converter
Convert a calendar date to ISO week-date notation.
Open tool →Calendar Quarter Calculator
Identify the calendar quarter and its start and end dates.
Open tool →Fiscal Quarter Calculator
Calculate fiscal year and quarter from a chosen fiscal start month.
Open tool →Month Difference Calculator
Estimate elapsed months and report the calendar interval.
Open tool →Year Difference Calculator
Estimate elapsed years and report the calendar interval.
Open tool →Hours Between Date-Times
Calculate signed elapsed hours between two date-times.
Open tool →Minutes Between Date-Times
Calculate signed elapsed minutes between two date-times.
Open tool →Seconds Between Date-Times
Calculate signed elapsed seconds between two date-times.
Open tool →Countdown Breakdown
Break an absolute date-time difference into days, hours, minutes and seconds.
Open tool →Age in Multiple Units
Report age in calendar years, months, weeks, days, hours and minutes.
Open tool →Recurring Date Generator
Generate bounded daily, weekly, monthly or yearly occurrences.
Open tool →Weekend Day Counter
Count Saturday and Sunday dates in an inclusive range.
Open tool →Weekday Counter
Count Monday through Friday dates in an inclusive range.
Open tool →Last Day of Month
Find the last date, weekday and day count for a month.
Open tool →Next Weekday Finder
Find the next selected weekday from a date.
Open tool →Date Range List Generator
Generate up to 1,000 dated rows using a selected day step.
Open tool →